EP 2839611 A4 20160106 - METHOD TO DO FAST TRAFFIC SWITCHOVER BASED ON SERVER LAYER STATUS
Title (en)
METHOD TO DO FAST TRAFFIC SWITCHOVER BASED ON SERVER LAYER STATUS
Title (de)
VERFAHREN ZUR SCHNELLEN VERKEHRSUMSTELLUNG AUF DER BASIS EINES SERVERSCHICHTSTATUS
Title (fr)
PROCÉDÉ POUR EFFECTUER UN BASCULEMENT DE TRAFIC RAPIDE EN FONCTION D'UN ÉTAT DE COUCHE SERVEUR
Publication
Application
Priority
CN 2012074416 W 20120420
Abstract (en)
[origin: WO2013155696A1] A method and apparatus perform fast traffic switchover based on server layer status. To do fast traffic switchover when there is server layer failure, each forwarding entry in a forwarding table contains an index to server layer status table, wherein traffic is associated to a service layer based on the physical communication resources used by the primary path. The server layer status table contains status code for all instances of server layers in the system. One status code indicates the server layer status is normal, and primary paths may be used to carry client layer traffic. Another status code indicates abnormal condition on the server layer, and that primary paths cannot be used to carry client layer traffic. When the forwarding entry is used to forward incoming packets, the server layer status code is checked. If the status code indicates normal functionality, the failover object is checked to route the traffic on either the primary or secondary path. If the status code indicates the server layer is non-functional, the forwarding entry corresponding to the secondary path is used to forward incoming packets. When a failure is detected, or a known failure is cured, the server layer status table is updated.
IPC 8 full level
H04L 45/28 (2022.01); H04L 45/24 (2022.01); H04L 45/50 (2022.01)
CPC (source: EP US)
H04L 43/0817 (2013.01 - US); H04L 45/22 (2013.01 - EP US); H04L 45/28 (2013.01 - EP US); H04L 45/50 (2013.01 - EP US)
Citation (search report)
- [XAI] WO 2005039085 A2 20050428 - CISCO TECH IND [US], et al
- [A] EP 2150007 A1 20100203 - JUNIPER NETWORKS INC [US]
- See references of WO 2013155696A1
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
DOCDB simple family (publication)
WO 2013155696 A1 20131024; EP 2839611 A1 20150225; EP 2839611 A4 20160106; US 2015334006 A1 20151119
DOCDB simple family (application)
CN 2012074416 W 20120420; EP 12874758 A 20120420; US 201214395593 A 20120420